[PATCH] random: get rid of dead codes from credit_entropy_bits

[Li RongQing]

After commit 90ea1c6436d2 ("random: remove the blocking pool"),
has_initialized is zero always, and initialized of struct
entropy_store is not used

Signed-off-by: Li RongQing <lirongq...@baidu.com>
---
 drivers/char/random.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index a7cf6aa65908..288cc4464a69 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -500,7 +500,6 @@ struct entropy_store {
        unsigned short add_ptr;
        unsigned short input_rotate;
        int entropy_count;
-       unsigned int initialized:1;
        unsigned int last_data_init:1;
        __u8 last_data[EXTRACT_SIZE];
 };
@@ -660,7 +659,7 @@ static void process_random_ready_list(void)
  */
 static void credit_entropy_bits(struct entropy_store *r, int nbits)
 {
-       int entropy_count, orig, has_initialized = 0;
+       int entropy_count, orig;
        const int pool_size = r->poolinfo->poolfracbits;
        int nfrac = nbits << ENTROPY_SHIFT;
 
@@ -717,11 +716,6 @@ static void credit_entropy_bits(struct entropy_store *r, 
int nbits)
        if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
                goto retry;
 
-       if (has_initialized) {
-               r->initialized = 1;
-               kill_fasync(&fasync, SIGIO, POLL_IN);
-       }
-
        trace_credit_entropy_bits(r->name, nbits,
                                  entropy_count >> ENTROPY_SHIFT, _RET_IP_);
 
-- 
2.16.2